Research On Community Microgrid Interactive Energy Management Approach Based On CPSS Framework

Promoting high-level supply and high-efficiency consumption of renewable energy are the main tasks in energy transformation.As one of the most effective application methods of distributed renewable energy generators,the microgrid will become the main form of community power supply in the future.The development and integration of information and communication technology will make the community microgrid data more real-time and transparent,which will help improve the demand-side management level.At the same time,the high coupling of the cyberspace and the physical system also makes its reliability assessment a new challenge.This article focuses on the community microgrid energy management issues under the new situation,and contains the following jobs:(1)As to the demand side of the community microgrid,this paper constructs and analyzes the community microgrid Cyber-Physical-Social System(CPSS)architecture,and proposes an interactive energy management method which covers "supply-demand interaction" and "virtual-actual interaction" in the community microgrid.First,based on the parallel control theory and the ACP method,an interactive energy management model of the community microgrid is constructed,in which a parallel system corresponding to the actual system is established,and the goal of energy management is achieved through the interaction between the actual system and the parallel system.Second,according to the social attributes of power users,a demand-side control strategy named "Guiding Cue" is proposed.Then,in order to solve the problem of user-side behavior modeling,this paper constructs a "Virtual Community" as the user-side behavior mapping in the cyberspace,which imitates the decision-making behavior of power users.The basic model of "Virtual Community" is built based on the Markov process and Bayesian online learning,and the collaborative filtering algorithm is used to optimize the model.Finally,the simulation shows that the energy management method proposed in this paper can improve the renewable energy utilization rate and economic benefit of the community microgrid effectively.This approach also enables power users to participate in the energy management process actively,which forms a benign supply-demand interaction.(2)As to the supply side of the community microgrid,a cyber-physical coupled reliability assessment method is proposed.First,this paper researches the interaction process of data flow and energy flow in a microgrid,the process of information transmission and the topology of the communication system.A static model of the communication network and a dynamic model of the process are established.Then,the index and approach of reliability assessment based on entropy theory are proposed.Finally,the reliability evaluation method is simulated.The results show that the proposed method can effectively quantify the impact of microgrid communication network status on physical system stability,and assess the reliability of microgrid with cyberphysical architecture.The proposed interactive energy management method will help energy consumption develop towards higher efficiency and rationalization and encourage energy consumers to participate in energy-saving actions actively,as well as promote the consumption of renewable energy.The proposed reliability assessment method can provide suggestions for the planning and operation management of the microgrid to ensure the high-level supply of renewable energy.